Crash on iOS 7.1

[MarcoMig]

Hello, I have this code that works properly on iOS 8:

layout(self.loadingVC!.view, self.view, self.mainLogo) {loadingView, view, mainLogo in
                    loadingView.width == view.height.view.frame.size.width * 0.8
                    loadingView.height == view.height.view.frame.size.height/3
                    self.centerLoadingVIewConstr = loadingView.centerX == view.centerX + view.width.view.frame.width
                    loadingView.centerY == mainLogo.centerY
                }

But when I execute this code in iOS 7.1 the app crash with the following message:

Assertion failure in -[UITableView layoutSublayersOfLayer:], /SourceCache/UIKit_Sim/UIKit-2935.137/UIView.m:8794
2015-06-21 11:50:10.232 Save me[27458:607] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Auto Layout still required after executing -layoutSubviews. UITableView's implementation of -layoutSubviews needs to call super.'

What is the problem? Thanks

[robb]

iOS 7.1 is not officially supported by Cartography, but are you sure you're installing the constraints in the right place?